There are a lot of science experience I can suggest to you, however I need to know your age so I can give you an age appropriate research you could at least tell us what grade are you now. Since your research needs to be done right away I will recommend a website that has all the age group research projects. You can also choose the difficulty of the project. Just bear in mind that the only distinction between a good and a not-so-good research is in choosing the idea. If you have a great project, but it fits the wrong age, you'll have a big flop!